Sheet-metal cage for roller-bearings.



, 0. s; LOOKWOOD.

' SHEET METAL GAGE FOR ROLLER BEARINGS APPL'IUATION FILED JAN. 2, 1912.

1 063 705 Patented June 3,1913.

UNITED." STATES PATENT OFFICE.

:EGHARLES s. LocKwooD, on Nnwnim, New JERSEY, ASSIGNOR T0 HYATT' ROLLERBEARING COMPANY,'OF HARRISOR'NEW JERSEY, A CORPORATION or NEW JERSEY.

Specification of Letters Patent.

SHEET-METAL CAGE FOR ROLLER-BEARINGS.

Patented J mm 3, 1913.

Application filed January 2, 1912. Serial No. 668,833.

To allevhom it may cowern:

and State of New Jersey, have invented certainnew; and usefulImprovementsin Sheet-Metal I Cages for, "Roller-Bearings, fullydescribed and represented inLthe-fol lowing specification and theaccompanying drawings, forming apart of the same.

This invention relates .to. special construction for a sheet-metal cagetoguide a series of rolls-in their movement-uponthea hub of aroller-bearing and, if desired, to retain the rolls -upon the-hub"independently l of the casing so; as to hold the rolls in posi tionwhi'leadjusting the casing thereon.

struction which is adapted to. be formed of sheet-1netal by .punohingandstamping op, erations, and which! can thus be made with a sufiicientdegree of finish without any machining or polishingof the "surface; Suchcages have heretofore been'made with sheet-metal rings at opposite. endshavingan integral connect-ion with partition-bars extended between therolls, as'in my prior:-

Patent. No. 982,512 dated January 24, 1911; but where such a cage ismade of tapering form to fit tapering rolls upon a tapering hub itrequires a series of punching and stamping operations to form it ofsheetmetahwhich involves a considerable cost. The object of the presentinvention is to reduce 'the cost of construction by making the'partition-bars as prongs having 'anintegralconnection with'one ringonly,'and therefore capable of being stampedfrom sheet-metal in flatform withsuch ring, and then bent at the desiredan-glexand'the free endsof the prongs he u ited if desired,"

This is a cheaperfconstruction than: on n. which the union of the prongsis integ ing of" the cage into it's'dish-shape before it is punched totox n the prongs. If the outer ring'were united integrallywiththe prongsand punched from'a sheetitherewith in flat form, the ring would bealtogether larger prongs is effected at a single operation by punchingfrom ,a fiat sheet.

'outer"sides-of the rolls. Fig. 6.

. m at both ends, which necessitates thexstanip'-- The invention willbeunderstood by reference to the annexed drawing, in which- Figure l isa longitudinal section of a hearing eInbo-dyi'ngthe invention; Fig. 2an-end venv of the hub; Fig.3 is .an elevation ofthe collar attached tothe free ends of the prong-spi is an end view of the cage; 5 edge Viewof 'the cage; and

Fig. 6 aview showing part of the integral ring a portionof-t-heyprohgsattached thereto as? they arestamped from ,sheet.

"metal, before bending-at the desired incl-inn to the smeans-jor asfimbling ts a designates the COItlCal hub having'a (50i fcal seat b, sunk inits surface and a ser es of p p n rolls e 'fitte'd-theret'o.Shoulders-(Z, d are The invention consists in a particular con-..

shown .u qn the 'hub' at its opposite ends and the'integral' ring 6 ofthe cage-is formed.

to ride upon the shoulder d at 'the smaller end oftthehub: The prongsfgprfojectlfiomthe .ring2'and are inclined to the ring at-the same"angle as the. axes of the rolls'are inclined to. the .ehdo-i the-hub.The free ends of-the prongs are formed with; lugs f bent outwardly-intoa flat plane', and such bent ends of the lugs are shown connectedtogether by a collar 9 and-rivets Jr. At'casing '2 is shown encirclingthe rolls, which casing in practice is supported -in a cylindrical seatso that a shaft fixed inthe hub is supported from end thrust ino'nedirection, and froni lateral thrust in"anydirection. Lips, k areshown upon opposite'sides fo f the prongs f and are represented in Figs.4'. and 5 curved outwardly from opposite sides of the prongs so .astoarchtoward one .anotheroverthe shows the form of the blanlc punched in'afsingle operation from sheetinetal flat form, with the ring eand thepro g projecting radially therefrom.

This cannot'be done in a single operation if .the prongs hayelintegralrings at both ends. :Such a blank may then be stamped into the "formshown in- Fig. 5., with the lips is "curved outwardly from the edges ofthe prongs, and the lugs f formed uponthe ends of the prongs by bendingthem parallel withthe' plane of the ring '6. In Fig. 6, holes which formthe lugs fwhen bent outwardly, as shown in Figs. {iand 5'; and. thecollar 9, as shown in Fig. 4, is formed with corresponding holes toreceive the rivets h. This 10.5 are shown stamped in the ends of theprongs construction is an improvement upon the construction of my PatentNo. 982,512

granted January 24, 1911, as it makes a cage of cheaper construction,-because 1t avoids first pressing the blank to dishshape and punching theopenings separately to receive the rolls.

Fig. -7 shows means of assembling the parts by applying the collar 9 tothe larger end ofthe hub and supporting the hub upon the said end withthe rolls inserted in the seat 6, and held therein and also suitablyspaced by means of an outer frame 79. The prongs of the cage are thenreadily inserted betweenthe rolls and operate to retain them in the seatZ) when the frame p is removed, so that the hub, rings and cage can behandled while riveting the collar 9 upon the ends of the prongs. thecage can be made at very trifling cost and proportioned accurately tofit the rolls upon the hub in the desired manner. It also re duces thefriction ofthe cage to its mere contact with the sides of the rolls,which produces a minimum of frictioinas but very little force isrequired to rotate the cage upon the hub. It also prevents any endmovement of the cage, which, by means of the tapering form of the rollsand the tapering form of the pockets and lips which embrace them, wouldtend to wedge or jam the By this construction cage against the sides ofthe rolls. It also prevents any retardation of the rolls, as the hubrevolves at a greater speed than the cage and thus tends to move thecage in advance of the rolls. I

I do not 'claim the mere formation of a cage from a flat blank as thatis already old, but

Having described my invention I claim my particular construction asfollows:

In a roller bearing, thecombination, with a conical hub having atapering roll-seat and shoulders (Z, d at its ends, of a series of:tapering rolls fitted to the roll-seat, a sheet- .metal cage having aflat ring at one end, a

series of integral prongs extended there.- from between the rolls, lipsupon the prongs embracing the outer sides of the rolls, lugs bent uponthe free ends of the prongs parallel with the plane of the integral fiatring, a separate fiat sheet-metal ring riveted to the flat lugs at thefree ends of the prongs, and both rings fitted to ride upon the hubadjacent to the said shoulders.

In testimony whereof I have hereunto set my hand in the, presence of twosubscribing witnesses.

CHARLES S. 'LOCKWOOD. Witnesses:

G. C. STUL'rs,

ETIIEL VILLIADIS.

